It all sounds so silly, why bother to sell them at all. I am not too concerned about the homes my mice go to, unless the perosn is clearly a weirdo. I think its better for them to have a chance at some kind of life rather than being culled when I decide they are undesirable for breeding. I think after you sell an animal you have no say over how it kept or used. Why should you, the buyer has no right to tell you how to spend their money.